407挂载SD卡的dfs不成功边做边学习已完成有模块应用代码

发布于 2018-03-16 10:33:51 浏览：3234 订阅该版

* 本帖最后由 qiousanxi 于 2018-3-20 16:47 编辑 *

**使用的是原子的407例程，按照3.01BSP 429的阿波罗修改了，**

static struct rt_device sdcard_device;
static struct rt_semaphore sd_lock;

/* RT-Thread Device Driver Interface */
static rt_err_t rt_sdcard_init(rt_device_t dev)
{
 if (rt_sem_init(&sd_lock, "sdlock", 1, RT_IPC_FLAG_FIFO) != RT_EOK)
 {
 rt_kprintf("init sd lock semaphore failed ");
 }
 else
 rt_kprintf("SD Card init OK ");

return RT_EOK;
}

static rt_err_t rt_sdcard_open(rt_device_t dev, rt_uint16_t oflag)
{
        return RT_EOK;
}

static rt_err_t rt_sdcard_close(rt_device_t dev)
{
        return RT_EOK;
}

static rt_size_t rt_sdcard_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size)
{
        rt_uint8_t status = SD_OK;

rt_sem_take(&sd_lock, RT_WAITING_FOREVER);
        
    if(((uint32_t)buffer & 0x03) != 0)
    {
        /* non-aligned. */
        uint32_t i;
        uint64_t sector_adr;
        uint8_t* copy_buffer;

sector_adr = (uint64_t)pos*SECTOR_SIZE;
        copy_buffer = (uint8_t*)buffer;

for(i = 0; i < size; i++)
 {
 SD_ReadBlock(SDIO_DATA_BUFFER,sector_adr + 512*size,512);//单个sector的读操作
 memcpy(copy_buffer,SDIO_DATA_BUFFER,512);
 copy_buffer+=512;
 } 
 }
 else
 {
 if(size==1)
 SD_ReadBlock((u8 *)buffer,(uint64_t)pos*SECTOR_SIZE,512); //单个sector的写操作
 else 
 SD_ReadMultiBlocks((u8 *)buffer,(uint64_t)pos*SECTOR_SIZE,512,size); //多个sector 
 }

rt_sem_release(&sd_lock);
        if (status == SD_OK) return size;

rt_kprintf("read failed: %d, buffer 0x%08x ", status, buffer);
 return 0;
}

static rt_size_t rt_sdcard_write (rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size)
{
        rt_uint8_t status = SD_OK;
        rt_sem_take(&sd_lock, RT_WAITING_FOREVER);

if(((uint32_t)buffer & 0x03) != 0)
    {
        /* non-aligned. */
        uint32_t i;
        uint64_t sector_adr;
        uint8_t* copy_buffer;

sector_adr = (uint64_t)pos*SECTOR_SIZE;
        copy_buffer = (uint8_t*)buffer;

for(i=0; i<size; i++)
 {
 memcpy(SDIO_DATA_BUFFER,copy_buffer,SECTOR_SIZE);
 SD_WriteBlock(SDIO_DATA_BUFFER,sector_adr+512*size,512); //单个sector的写操作
 copy_buffer += 512;
 } 
 }
 else
 {
 if(size == 1)
 SD_WriteBlock((u8 *)buffer,(uint64_t)pos*SECTOR_SIZE,512); //单个sector的写操作
 else 
 SD_WriteMultiBlocks((u8 *)buffer,(uint64_t)pos*SECTOR_SIZE,512,size); //多个sector 
 }
 
 rt_sem_release(&sd_lock);
 if (status == SD_OK) return size;
 rt_kprintf("write failed: %d, buffer 0x%08x ", status, buffer);
 return 0;
}

static rt_err_t rt_sdcard_control(rt_device_t dev, int cmd, void *args)
{
    RT_ASSERT(dev != RT_NULL);

if (cmd == RT_DEVICE_CTRL_BLK_GETGEOME)
    {
        struct rt_device_blk_geometry *geometry;

geometry = (struct rt_device_blk_geometry *)args;
        if (geometry == RT_NULL) return -RT_ERROR;

geometry->bytes_per_sector = 512;
        geometry->block_size = SDCardInfo.CardBlockSize;
                geometry->sector_count = SDCardInfo.CardCapacity/SDCardInfo.CardBlockSize;
    }

return RT_EOK;
}

static int rt_hw_sdcard_init(void)
{
        if (SD_Init() == SD_OK)
        {
                /* register sdcard device */
                sdcard_device.type  = RT_Device_Class_Block;
                sdcard_device.init         = rt_sdcard_init;
                sdcard_device.open         = rt_sdcard_open;
                sdcard_device.close = rt_sdcard_close;
                sdcard_device.read         = rt_sdcard_read;
                sdcard_device.write = rt_sdcard_write;
                sdcard_device.control = rt_sdcard_control;

/* no private */
                sdcard_device.user_data = &SDCardInfo;

rt_device_register(&sdcard_device, "sd0",
                        RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_REMOVABLE | RT_DEVICE_FLAG_STANDALONE);

return RT_EOK;
 }
 rt_kprintf("sdcard init failed ");
 return RT_ERROR;
}
INIT_BOARD_EXPORT(rt_hw_sdcard_init);

启动程序

void rt_init_thread_entry(void *parameter)
{
#ifdef RT_USING_COMPONENTS_INIT
 /* initialization RT-Thread Components */
 rt_components_init();
#endif
 
#if defined(RT_USING_DFS) && defined(RT_USING_DFS_ELMFAT)
 if (dfs_mount("sd0", "/dev", "elm", 0, 0) == 0)
 {
 rt_kprintf("sd card mount to /dev! "); 
 }
 else
 {
 rt_kprintf("sd card mount to /dev failed! ");
 }
#endif /* DFS */ 
 
#ifdef RT_USING_FINSH
 /* init finsh object */
 finsh_system_init();
#endif

#ifdef RT_USING_MODULE
        /* init module object */
        rt_system_module_init();
#endif                
}

**设备已经有了**
 \ | /
- RT -     Thread Operating System
 / | \     3.0.3 build Mar 16 2018
 2006 - 2018 Copyright by rt-thread team
do components intialization.
initialize rti_board_end:0 done
initialize dfs_init:0 done
initialize rt_mmcsd_blk_init:0 done
initialize rt_mmcsd_core_init:0 done
initialize rt_system_module_init:0 done
initialize elm_init:0 done
initialize finsh_system_init:0 done
sd card mount to /dev failed!
finsh />list_device()
device         type         ref count
------ -------------------- ----------
sd0    Block Device         0       
uart1  Character Device     2       
        0, 0x00000000

格式化就会死机
finsh />mkfs("elm","sd0")
device_name : sd0
SD Card init OK
psr: 0x21000000
 pc: 0x080003e8
 lr: 0x0800d8d1
r12: 0x00000ff5
r03: 0x00000030
r02: 0x000000ff
r01: 0x00000000
r00: 0x00000011
hard fault on thread: shell

请教一下，还需要什么注意的吗？？？？

13 个回答

Tianqf 2018-03-16

这家伙很懒，什么也没写！

qiousanxi 2018-03-16

这家伙很懒，什么也没写！

**设备测试的时候**
 \ | /
- RT -     Thread Operating System
 / | \     3.0.3 build Mar 16 2018
 2006 - 2018 Copyright by rt-thread team
do components intialization.
initialize rti_board_end:0 done
initialize dfs_init:0 done
initialize rt_mmcsd_blk_init:0 done
initialize rt_mmcsd_core_init:0 done
initialize rt_system_module_init:0 done
initialize elm_init:0 done
initialize finsh_system_init:0 done
SD Card init OK
block device!

device info:
sector  size : 512 byte
sector count : 15564800 
block   size : 512 byte

device R/W test pass!

RT_TICK_PER_SECOND:1000

continuous single sector speed test:
write: <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
write 200 sector from 293 to 1257, 103.73Kbyte/s
read : >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
read 200 sector from 1262 to 1566, 328.94Kbyte/s

random single sector speed test:
write: <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
write 200 sector from 1575 to 4561, 33.48Kbyte/s
read : >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
read 200 sector from 4566 to 4862, 337.83Kbyte/s

multiple sector speed test
write: <<<<<<<<<<
multiple write 2 sector speed : 204.8Kbyte/s
read : >>>>>>>>>>
multiple read 2 sector speed : 588.23Kbyte/s

write: <<<<<<<<<<
multiple write 4 sector speed : 400.0Kbyte/s
read : >>>>>>>>>>
multiple read 4 sector speed : 1.22Mbyte/s

write: <<<<<<<<<<
multiple write 8 sector speed : 677.96Kbyte/s
read : >>>>>>>>>>
multiple read 8 sector speed : 2.79Mbyte/s

write: <<<<<<<<<<
multiple write 16 sector speed : 1.73Mbyte/s
read : >>>>>>>>>>
multiple read 16 sector speed : 4.33Mbyte/s

write: <<<<<<<<<<
multiple write 32 sector speed : 3.32Mbyte/s
read : >>>>>>>>>>
multiple read 32 sector speed : 10.41Mbyte/s

write: <<<<<<<<<<
multiple write 64 sector speed : 6.64Mbyte/s
read : >>>>>>>>>>
multiple read 64 sector speed : 22.32Mbyte/s

write: <<<<<<<<<<
multiple write 128 sector speed : 3.63Mbyte/s
read : >>>>>>>>>>
multiple read 128 sector speed : 44.64Mbyte/s

qiousanxi 2018-03-16

这家伙很懒，什么也没写！

qiousanxi 2018-03-16

这家伙很懒，什么也没写！

qiousanxi 2018-03-16

这家伙很懒，什么也没写！

qiousanxi 2018-03-16

这家伙很懒，什么也没写！

qiousanxi 2018-03-20

这家伙很懒，什么也没写！

armink 2018-03-20

这家伙很懒，什么也没写！

qiousanxi 2018-03-22

这家伙很懒，什么也没写！

aureoleday 2018-04-03

这家伙很懒，什么也没写！

>没有创建，我把这屏蔽了，之前是 带这个东西，目录一直在devfs目录里面

---

你好，你的工程帮我大忙了，刚好在调SD的驱动
目前用你的工程能实现SD卡的读写和测速，但是也出现了你的情况
 \ | /
- RT -     Thread Operating System
 / | \     3.0.3 build Apr  2 2018
 2006 - 2018 Copyright by rt-thread team
SD Card init OK
sd card mount to / failed!
finsh />devi
--function:
device_test      -- e.g: device_test("sd0")
finsh />device_test("sd0") 
block device!

device info:
sector  size : 512 byte
sector count : 15273984 
block   size : 512 byte

device R/W test pass!

RT_TICK_PER_SECOND:1000

continuous single sector speed test:
write: <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
write 200 sector from 11002 to 12253, 79.93Kbyte/s
read : >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
read 200 sector from 12259 to 12386, 787.40Kbyte/s

random single sector speed test:
write: <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
write 200 sector from 12394 to 13763, 73.4Kbyte/s
read : >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
read 200 sector from 13768 to 13897, 775.19Kbyte/s

multiple sector speed test
write: <<<<<<<<<<
multiple write 2 sector speed : 64.93Kbyte/s
read : >>>>>>>>>>
multiple read 2 sector speed : 1.39Mbyte/s

write: <<<<<<<<<<
multiple write 4 sector speed : 487.80Kbyte/s
read : >>>>>>>>>>
multiple read 4 sector speed : 2.79Mbyte/s

write: <<<<<<<<<<
multiple write 8 sector speed : 930.23Kbyte/s
read : >>>>>>>>>>
multiple read 8 sector speed : 4.88Mbyte/s

write: <<<<<<<<<<
multiple write 16 sector speed : 484.84Kbyte/s
read : >>>>>>>>>>
multiple read 16 sector speed : 6.50Mbyte/s

write: <<<<<<<<<<
multiple write 32 sector speed : 935.67Kbyte/s
read : >>>>>>>>>>
multiple read 32 sector speed : 8.22Mbyte/s

write: <<<<<<<<<<
multiple write 64 sector speed : 5.78Mbyte/s
read : >>>>>>>>>>
multiple read 64 sector speed : 9.76Mbyte/s

write: <<<<<<<<<<
multiple write 128 sector speed : 7.35Mbyte/s
read : >>>>>>>>>>
multiple read 128 sector speed : 10.41Mbyte/s
即使把#ifdef RT_USING_DFS_DEVFS那段屏蔽了也没用，还有什么招么？